Wikipedia is Everywhere: AT&T Edition

You might not have noticed, but it's even in a recent AT&T television spot advertising the iPhone 4. Actually, let me phrase that differently. This is an iPhone 4 TV spot advertising AT&T. The point of the commercial is that one can use both voice and data simultaneously on AT&T's network, which rival iPhone carrier Verizon presently does not.

In this case, the protagonist of our thirty-second tale is arguing about pop culture nostalgia with a friend—the release year of "Whoomp! (There It Is!)”—and you don't need me to tell you which resource he consults to settle the question once and for all:

What I'd like to know is what browser or app he's supposed to be using. As an iPhone user myself, I can verify that is not the Safari browser, nor is it the official Wikimedia Mobile app, nor popular alternatives Wikipanion or Articles. I suppose it could even be a made-up app, for obscure legal reasons. If you know the answer, please share in the comments.

Update: In the comments, Nihiltres has the answer: a relatively new (paid) app called iWiki. Looks nice, though I'll probably just stick with the mobile site.